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Bruce in Bangkok[_8_]

In article ,
says...
"Larry" wrote

Your hands came away from the belt clean? Has the engine been started
since it was put on??....(c Belts grind their whole lives...planned
obsolescence. Get one of the 100A load testers for $15. That will tell
us.

I went down this morning and tightened the belt up a bit and did get my
hands a little dirty. Nothing like I'm used to seeing though. I did notice
that the alternator pulley is nearly mirror polished inside. The belt on my
engine goes around the cast iron flywheel so no polishing there. This belt
has about 80 hours on it.

No strange radio sounds and the system seemed to charge perfectly over the
next 8 days. Is it still possible I have a burned out diode?

--
Roger Long

You said in a different post that system voltage was about 14 VDC which
indicates that the alternator is producing its rated output as otherwise
you will not be reading 14 volts.

However, why not just take the alternator off and take it to the
'lectric shop. there must be someplace in Maine that repairs alternators
and they all have test stands to test the output. If it is a normal
Yanmar alternator it has an internal regulator so the test will check
that also.

By the way, if the alternator is taken apart change the brushes. they
are cheap and changing them eliminates one more thing that might go
wrong next year :-)

--
Cheers,

Bruce in Bangkok